This has been around for a while, so wanted to spread the word. If you use DCS in VR and have deferred shading turned on then it’s likely that at the end of a mission your game will crash. Apparently the problem is related to the fancy VR menu you get shown (of the Su-27 in the Hangar).
The temporary workaround is to rename the script that makes up that menu, i.e. rename this file:
DCS World 2 OpenAlpha/Scripts/demoScenes/SceneVR.lua
…to something like old-SceneVR.lua
This removes the VR menu and then removes the crash (at least more often anyway).
PS Thanks @Troll for the original pointer to this.